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Finding the Fourth Proportional to 83,957.80, 126,005.55 and 83,301.70

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Solution

The fourth proportional to 83,957.80, 126,005.55 and 83,301.70 is: 125,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,957.80 : 126,005.55 = 83,301.70 : x
  2. Step 2: Convert to fraction form
    83,957.80/126,005.55 = 83,301.70/x
  3. Step 3: Cross multiply
    83,957.80x = 126,005.55 × 83,301.70
  4. Step 4: Simplify right side
    83,957.80x = 10,496,476,524.44
  5. Step 5: Solve for x
    x = 10,496,476,524.44/83,957.80
  6. Step 6: Final answer
    x = 125,020.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.